Tire.



No. 875,994. PATENTED JAN. 7, 1908. W. D. HARRXS,

TIRE.

APPLICATION FILED my 16, 1905 RENEWED FEB.2,1H07.

UNITED STATES PATENT OFFICE.

WILLIAM D. HARRIS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HARRISTIRE & RUBBER 00., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OFMAINE.

TIRE.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application filed May 16, 1905, Serial No. 260.707- Renewed February2,1907. Serial No. 355.472.

To aZZ whom it mag concern:

Be it known that I, IVILLIAM D. HARRIS, a citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Tires, of which the following is a specification.

One object of my invention is to provide a tire of the pneumatic orcushiontype which, under conditions of use, shall be relatively moredurable and less likely to deteriorate than has hitherto been the casewith tires belonging to the same general class. In order to accomplishthis end I embed a body of fiber within the rubber tire in such mannerthat said fiber will materially increase its longevity and at the sametime cause the Wear to take place evenly and in such mannor that thereis no likelihood of injury to the tire due to the separation or tearingout of loose ends of the fiber. These objects I attain as hereinafterset forth, reference being had to the accompanying drawings, in which,

Figure l, is a vertical section of a well known form of pneumatic tire,showing my invention as applied thereto; Fig, 2, is a vertical sectionof a solid tire constructed according to my invention, and Fig. 3, is avertical section illustrating a special arrangement of the fibers in atire.

In carrying out my invention I form the wearing portion of the tire of abody of material consisting of fibers embedded in rubber or equivalentsubstance, which fibers are so laced that they are substantiallyerpenfiicular to the wearing surface of t e tire; there usually being inaddition other fibers extending at right angles to the lines of the mainfibers for the purpose of holding these in position during the processof manu-v facture and also to give mechanical strength to the tire. I

It will be understood that the two sets of fibers are interwoven inorder that the fabricarranged as to be substantially perpendicular tothe outside surface of the tread or'substantially per endicular to aline tangent to the surface 0 the tread. These fibers extend between thefabric 1) and the outside surface of the tread, their inner endspreferably abutting upon said fabric. In order that the fibers b may besuitably held in position during the manufacture of the tire, Ireferably use a fabric having said fibers Z) or its warp and the fibersb for its weft, so that these former fibers are properly spaced and heldin position while being surrounded or embedded in the body of rubberforming the supporting structure or body of the tread b i It will beseen that under operating conditions the rubber will be protected by thefibers b which will naturally project slightly beyond the surface of thetread and take the reater ortion of the wear upon themselves. hese fihorse or other hair, as well as any desired form of vegetable fiber oreven metallic wires and I desire that my invention shall be construed asbroadly covering the use of any of said materials.

In Fig. 2, I have shown the invention as applied to a solid tire, thisbeing shown as in osition u on a rim A carried on the felly C. Ihe tireis held in place by circumferentially extending wires a and, as before,consists of a rubber body having embedded within it a series of fibers bwhich extend in lines substantially perpendicular to the wearing surfaceof the tire.

If desired, the fibers while extending in lines practicallyperpendicular to the wearing surface, as above noted, may be interwovenas indicated at b in Fig. 3, so as to cause them to be more firmlyembedded in the rubher body of the tire, as well as to prevent thepossibility of individual fibers becoming loosened or detachedindependently of one another. i

I claim as my invention: 1. A tire including a body of fabric, a treadportion of resilient material outside of the same, and a series offibers extending through the tread portion in a line substantiallyperpendicular to the wearing surface thereof and ers may consist of suchmaterials as 2. A tire having a tread consisting of a body of rubber anda body of fabric embedded therein, said body of fabric having Weftthreads extending in lines substantially par- 5 ailei to the surface ofthe tread, with Warp threads extending substantially perpendicw lar tothe Wearing surface of the tread, said tire having a body portion offabric supporting said composite tread, substantially as de- 10 scribed,v

- 3. A tire having embedded in it a series of fibers extending in linessubstantially erendicular to its outside surface, said fi ers einginterwoven with each other, substantially as described.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

. WILLIM D. HARRIS.

Witnesses:

WILLIAM E. BRADLEY, Jos. H. KLEIN.

